<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <div id="components-demo">
      <button-counter></button-counter>
      <button-counter></button-counter>
      <button-counter></button-counter>
    </div>
  </body>
</html>
<script src="../../js/vue.js"></script>
<script>
  // 定义一个名为 button-counter 的新组件,可以复用代码
  Vue.component("button-counter", {
    data: function () {
      return {
        count: 0,
      };
    },
    template:
      '<button v-on:click="count++">You clicked me {{ count }} times.</button>',
  });

  new Vue({ el: "#components-demo" });
</script>
